The 2D MAS NMR spin-echo experiment: the determination of 13C-13C J couplings in a solid-state cellulose sample

Steven P Brown; Lyndon Emsley

doi:10.1016/j.jmr.2004.07.022

The 2D MAS NMR spin-echo experiment: the determination of 13C-13C J couplings in a solid-state cellulose sample

J Magn Reson. 2004 Nov;171(1):43-7. doi: 10.1016/j.jmr.2004.07.022.

Authors

Steven P Brown¹, Lyndon Emsley

Affiliation

¹ Department of Physics, University of Warwick, Coventry CV4 7AL, UK. S.P.Brown@warwick.ac.uk

PMID: 15504680
DOI: 10.1016/j.jmr.2004.07.022

Abstract

A simple 13C MAS spin-echo experiment is applied to a partially 13C-labelled cellulose sample extracted from wood. 13C-13C J couplings are determined even though considerable chemical disorder leads to observed linewidths in the normal 1D 13C CP MAS spectrum which far exceed the J couplings. The fitting of the experimental data also allows the quantification of the degree of isotopic enrichment.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Carbon Isotopes / chemistry
Cellulose / chemistry*
Magnetic Resonance Spectroscopy / methods*
Wood

Substances

Carbon Isotopes
Cellulose